feat: funciones Python datascience, finance, cybersecurity y pipelines

Datascience: aggregate_by_group, deduplicate_entities/relations, detect_drift,
diff_entities/relations, extract_entities/relations_llm, hotness_score, melt,
merge_graphs, pivot, build_entity/relation_schema_prompt.
Finance: avellaneda_stoikov_quotes, generate_gbm_prices, generate_taker_order,
hawkes_intensity + módulo finance.py.
Cybersecurity: envelope_encrypt/decrypt + módulo cybersecurity.py.
Pipelines: extraction_pipeline, monte_carlo_market, run_market_sim.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

python/functions/finance/avellaneda_stoikov_quotes.md

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+---
+name: avellaneda_stoikov_quotes
+kind: function
+lang: py
+domain: finance
+version: "1.0.0"
+purity: pure
+signature: "avellaneda_stoikov_quotes(mid_price: float, inventory: float, gamma: float, sigma: float, spread_base: float, n_levels: int, qty_base: float) -> list[dict]"
+description: "Genera ordenes de market maker usando el modelo Avellaneda-Stoikov. Calcula precio de reserva y half spread optimos segun inventario y volatilidad."
+tags: [simulation, market-making, avellaneda-stoikov, montecarlo, finance, order-book]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: []
+tested: false
+tests: []
+test_file_path: ""
+file_path: "python/functions/finance/finance.py"
+---
+
+## Ejemplo
+
+```python
+orders = avellaneda_stoikov_quotes(
+    mid_price=100.0,
+    inventory=0.0,
+    gamma=0.1,
+    sigma=0.02,
+    spread_base=0.5,
+    n_levels=3,
+    qty_base=10.0,
+)
+# [
+#   {'side': 'buy',  'price': 99.75, 'qty': 10.0},
+#   {'side': 'sell', 'price': 100.25, 'qty': 10.0},
+#   ...
+# ]
+```
+
+## Notas
+
+Funcion pura — sin aleatoriedad.
+`gamma` controla la aversion al riesgo de inventario: mayor gamma = spreads mas amplios.
+`inventory` positivo sesga los quotes hacia venta (reduce inventario largo).
+Cada nivel adicional ensancha el spread en `half_spread * 0.5` y aumenta la cantidad en `qty_base * 0.5`.
+Ordenes con precio <= 0 se descartan automaticamente.